Valve-operating mechanism



L May 26, 1925 1,539,163 W. E. CONCANNON VALVE OPERATING MECHANISM Filed March 28, 1924 $9.1, 5 g p I 67 a 43 1% I a. f I 42 A TTOR/VE V 35 T #4 iwliaw/mm Patented May 26, 1925.

UNITED STATE eaten-r: orrice.

WILLIAM E. oonoanlvon, or 'KnnsAs orrY, MISSOURI, AssIeNoR'oF ONE-BALE ro THOMAS e. ooncannon, or nnronxa, Kansas.

VALVE-OPERATING MECHANISM.

Application filed March 28, 1924f5eria1 K 7112508.

ToaZZ whom it may concern: 7

Be it known that 1, WILLIAM E. ConcennoN, a citizen of the United States, residing at Kansas City, inthe county of Jackson and State of Missouri, have inve-ntedcertaih new and useful Improvements in Valve-Opcrating Mechanism; and T de declare the following to be a full, clear, andexact de scription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form apart of this specification; v

This invention relates to a thermostatically control-led valve mechanism for varying the quantity of hydrocarbon fluid admitted to the compression chamber of an internal combustion engine and at the same time controlling water tore-mingle with the charge to be fed to the engine. When an engine is cold it requires a richer mixture than whe-n'it is hot and after the engine has warmed up it has been found advisable to admit water or watervapor into the combustion chamber so as to tend to reduce the formation of carbon so I have-provided an automatic means for controlling both the quantity of hydrocarbon fuel and the quanti-ty of water or water-vapor admitted.

The nov'ei construction of the prefer-red embodiment of my invention is illustrated in the accompanying drawings, iirwhich-e Fig. 1 is a view partly in elevation and partly in section of a 'valve controlling thei mostat constructed in accordance with my invention.

1 Fig. 2 1s a perspective view of an ad ustable connectlng link between the valve actuator and the valve, and

I Fig. 3 is a sectional view on the line 33 oliFig.1.. i 7

The intake manitold 1 of the engine and 'T the carburetor 2 maybe of any appropriate ablock dwhichmay be fastened to the inta m r fold bva v app p i m an r eramp eihv a bo t 'Th ihea -S-Ot he block has an-elongated recess 9 in which is located a thermostat element or bar 10 havmg a relatively high coeflicient of expansion so that the element 10 will expand or grow longitudinally when the temperature of the heat of the block rises duet'o the heat gen; crated from the intake manifold 1.

One end of the element 10 abuts against the closed end 11 of the recess 9, the other end of the element '10 projects beyond the open end of therecess and it is adapted to exert pressure against the short arm12 oi? an elbow lever 18 pivoted to the block. The long horizontal arm 14 of the elbow'lever 13 has knife edge bearings 15 to engagea knife edge 16 one socket member 17 tejlescopicallv associated with which isa rodv 18 hearing against an expansion spring'19, one end of 'which bears against the 'socketin the; member 17 and since'the member 18 is mounted to slide in the member 17, it is obvious that the spring 19 will tend to force the member 18 downwardly. The member 18 is'provided with a screw thread 20 engaging a similar thread in the socket member 21 provided at its upper end with slits 22' and with a taper thread 23 receiving a nut Qtwhich may he screwedon the taper to cause the internal threads of the member 21 to bind against the threads 20 of the member 18150 fasten the twoi 'nembers in adjusted nosit ion.

The lower ,end of the member'Ql is provided witha pin 25 so that the member 21 may be turned with respectto the member 18 for the purpose of lengthening or shortening the link consisting of the members 1?,

18and 20. In the lower endof the member a 8 20 is a sooket'26 which receives the upper end of a vertically reoiprocatory valve 27 having pins 28 thereonagainst' which one end of an expansion spring '29 hears, the op posite end of the spring bearing on the collar 30 so it will tendto unseatthe valve 31 from its seat surrounding the port 3. The short arm 12 of the elbow lever 13 is slitted at 32 to provide a spring finger 33 against which the outer endof the expansible and contractable thermostatic element 10 bears. The finger 33 will 'be stifi enough to cause the elbow lever to rock upon an initial expansion or element 10 but should the element 10 continue to expand after the valve 31 is seated on itsseat surrounding the opening. 3, the finger- 318 will have enough give or yieldabili -y to p v nt damage o the va ve 31 and in the latter event there can be certain lost motion between the members 17 and 18 due to the fact that the spring 19 may be slightly compressed without damaging the valve 31.

It will be obvious that when the element contracts, that is when its temperature is low the spring 29 will unseat the valve 31 and hold the maximum amount until the heat absorbing block 1 heats, then the mem- .ber 10 will begin to expand and the valve will tend to seat in proportion to the expanding action of the element 10 by varying the length of the arm 14 or by locating the knife edgein the proper notch 15, it is obvious that the ratio between the closing motion of the valve and the element 10 may be properly proportioned.

As previously explained it is not only the purpose of this invention to vary the proportion of air and hydrocarbon fluid (for example gasoline) as the fuel mixture by varying the amount of the liquid, but it. is also the purpose to synchronously control water vapor entering the combustion chamber so as to reduce the liability of carbon formation. In order to supply water or water vapors to the mixture in varying quantities, I provide a supply pipe 34 which communicates with the water chamber 35 in a block 36 fastened in the block 6 by a pin 37 or by some other suit-able device.

The chamber 35 communicates with the chamber 38 through a port 39 controlled by d a needle valve 40 having a pin 41 passing through an elongated slot 42 in the long arm 43 of an elbow lever 44, pivoted to a bracket 45 on the block 36. The short arm 46 of the elbow lever 44 is connected to the long arm 14 of the elbow lever 13 by a link 47 so that as the long arm 14 of the elbow lever 13 is actuated by the thermostatic element 10, motion will be communicated to the water controlling valve to allow the water to flow into the pipe 48 provided with the branches 49 and 50. The branch 49 discharges into the intake end of the intake manifold 1 and the branch 50 discharges into the manifold 1, so that upon the intake stroke of the piston, water vapors or water may be drawn through either or both of the branches 49 and 50, provided of course the engine is heated sufiiciently to cause the thermostatic element 10 through its linkage to unseat the water controlling valve. When the gasoline controlling valve is unseated, the water controlling valve will be seated and as the gasoline valve tends to move towards its seat the water controlling valve will tend to move away from its seat, so it will be apparent that the two valves will work in synchronism but function in alternate different manners.

On the end of the pin 23 is a threaded collar 51 in which is a'sc'rew stop 52 adapted to be locked by a locking nut 53. The screw 52 can be adjusted in the collar so that it can contact with the collar 30 and thereby limit the closing movement of the valve 31 so that the valve 31 cannot be jammed down on the walls of the port 3 and entirely close off communication between the chambers 52 and 4. By making the proper adjustment means is provided whereby the gas supply will not be entirely out oif, no matter how hotthe block 6 becomes or how much the element 10 expands.

The entire construction can be assembled on the block 6 and the block can be conveniently fastened to the engine by any suitable means for example the bolt 7.

What I claim and desire to secure by Letters-Patent is: v

1. A controlling means for carburetors for internal combustion engines comprising a block, means for securing the block to the manifolds of an internal combustion engine, a thermostatic element in the block, a carburetor controlling mechanism movable in response to the expansion action of the thermostatic element to actuate a carburetor valve to closingposition, a water chamber, means for feeding water to the chamber, a pipe having ported communication with the chamber and adapted to communicate with the intake manifold of the engine, a valve for varying the effective port area of the port communicating the pipe with the chamber and means actuated synchronously with the carburetor controlling mechanism for controlling the movement of the water port controlling valve.

2. A controlling means for carburetors for internal combustion engines comprising a block, means for securing the block to the manifolds of an internal combustion engine,

a thermostatic element in the block, a carburetor controlling mechanism movable in response to the expansion action of the thermostatic element to actuate a carburetor valve to closing position, a water chamber, means for feeding water to the chamber, a pipe. having ported communication with the chamber and adapted to communicate with the intake manifold of the engine, a valve for varying the effective port area of the port communicating the pipe with the chamber and means actuated synchronously with the carburetor controlling mechanism for controlling the movement of the water port controlling valve, the water port controlling valve having movement to constrict the water port when the carburetor valve mechanism tends to permit the carburetor valve to seat and vice versa.

3. A controlling means for carburetors for internal combustion engines comprising a block, means for securing the block to a part of theengine. to absorb heat therefrom, an

. elongated recess in the block closed at one 5 ied by the block having one arm in line with the bar, an adjustable actuator connected to the other arm of the elbow lever to control the liquid intake controlling valve of acarburetor and a yielding finger on the elbow ll lever against which the bar abuts.

4. In combination, a block adaptedto be secured to the manifolds of an internal combustion engine, a longitudinal expansible bar in the block, an. elbow lever pivoted to the block having a spring finger against Which the'bar abuts and a yielding valve actuator consisting of adjustable members connected to the elbow lever.

In testimony whereof I affix my signature.

WILLIAM E. CONCANNON. 

